AW: AW: AW: Strange RPi USB Audio Issue

[Michael Zoran]

On Sat, 2016-11-12 at 20:35 +0100, Arne Caspari wrote:
> Am 12.11.2016 20:29:57 schrieb(en) Michael Zoran:
> > OK, one last try.  Does the error only happen when building
> > something?
> > Or when the CPU is very busy?  I think USB has some issues if the
> > CPU
> > is very busy.
> 
> Unfortunately no. The error occurs even in an otherwise idle
> system.  
> While background activity seems to have an impact (the issue occurs  
> more often if there is eg. network activity), this problem only
> occurs  
> in my buildroot environment. On Raspbian, I am unable to provoke
> this  
> issue even if I invoke the same activity.
> 
> There must be something fundamental different but I am unable to
> see  
> it. The only thing I could think of right now is that Raspbian
> somehow  
> configures cgroups in a way that it works there but I am unable to
> see  
> how or where this setup should happen in Raspbian.
> 
> /Arne

Are you using the same audio player application in both environments
with exactly the same settings?  Perhaps one environment is using ALSA
and the other is using pulseaudio?